Switch to httr2

[raffaem]

No description provided.

[raffaem]

httr is superseded.

See https://httr.r-lib.org/

[yjunechoe]

Thanks for opening the PR. I'm not opposed to this (in fact it'd be awesome if this could be done seamlessly/effortlessly!), but if this is still in progress would you mind converting this PR to a draft and pinging us later by marking it ready to review? (ex: when all tests pass?)

I'll also just note that despite "superseded" sounding like a scary word, it's not critical for functionality:

In some ways a superseded function is actually safer than a stable function because it’s guaranteed never to change

• https://lifecycle.r-lib.org/articles/stages.html#superseded

To reiterate, it'd be awesome if you'd be willing to put in the time and effort to see this PR through! But I also just wanted to be transparent about the fact that we are indeed aware of {httr2} but have simply determined it to be not a priority the last time this was raised.

[raffaem]

I'm not so knowledgeable about R packages.

I converted this to a draft.

The tests already don't pass without the PR, I opened an issue about it

[raffaem]

Ready for review